Systems and methods for handling encrypted data

A computing system, comprising:

• a computing system;
• one or more processors;
• and
• a computer-readable medium comprising instructions that, when executed by the one or more processors, cause the computing system to perform operations to:
• receive, by the computing system and from an entity, an encrypted first key encrypted with a first public-private key pair and comprising a hash of at least a portion of sensitive data;
• decrypt, by the computing system, the encrypted first key using a private key of the first public-private key pair to access a first key;
• validate, by the computing system, the first key;
• re-encrypt, by the computing system, the first key using a symmetric key to generate a re-encrypted key;
• and
• transmit, by the computing system, the re-encrypted key to the entity such that the sensitive data may be decrypted.

A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• receiving, by a first computing system and from a second computing system, an encrypted first key encrypted with a first public-private key pair and comprising a hash of at least a portion of sensitive data;
• decrypting, by the first computing system, the encrypted first key using a private key of the first public-private key pair to access a first key;
• validating, by the first computing system, the first key;
• re-encrypting, by the first computing system, the first key using a symmetric key to generate a re-encrypted key;
• and
• transmitting, by the first computing system, the re-encrypted key to the second computing system such that the sensitive data may be decrypted.